That is a good way to put it. Thanks, Tobias.
– Of course, it is experienced at different levels corresponding to eight stages: Sotapanna Anugami through Arahant.
P.S. I recently came across the following sutta: “Nirāmisa Sutta (SN 36.31)”
Per that sutta, “niramisa sukha” can be experienced while on the mundane path.
– A stronger version of “nirāmisatara sukha” is experienced in the Lokuttara Path, starting with the Sotapanna Anugami stage.
– It is possible that it is called “nirāmisatara sukha” probably because it will not go away even in future lives.
P.P.S. We also need to keep in mind that “sukha” in Buddha Dhamma is the “absence of suffering”.
– A good analogy is the following. Suppose someone has a chronic headache that has been there for a long time. If they recover from it, they would just not feel that suffering anymore. It is not an “added sukha vedana”.
– We can say that the mind is “less burdened”.